是否有已知问题在使用AndroidJUnitRunner显示不确定的
ProgressBar时？我在测试期间遇到了以下错误：
05-26 15:22:48.504 1003-1016/? I/TestRunner﹕ java.lang.RuntimeException: Could not launch intent Intent { act=android.intent.action.MAIN flg=0x14000000 cmp=com.cookbrite.dev/com.cookbrite.ui.HomeListActivity } within 45 seconds. Perhaps the main thread has not gone idle within a reasonable amount of time? There could be an animation or something constantly repainting the screen. Or the activity is doing network calls on creation? See the threaddump logs. For your reference the last time the event queue was idle before your activity launch request was 1432668122421 and now the last time the queue went idle was: 1432668122421. If these numbers are the same your activity might be hogging the event queue.
堆栈跟踪如下：
05-26 15:22:48.504 1003-1016/? I/TestRunner﹕ java.lang.RuntimeException: Could not launch intent Intent { act=android.intent.action.MAIN flg=0x14000000 cmp=com.cookbrite.dev/com.cookbrite.ui.HomeListActivity } within 45 seconds. Perhaps the main thread has not gone idle within a reasonable amount of time? There could be an animation or something constantly repainting the screen. Or the activity is doing network calls on creation? See the threaddump logs. For your reference the last time the event queue was idle before your activity launch request was 1432668122421 and now the last time the queue went idle was: 1432668122421. If these numbers are the same your activity might be hogging the event queue.
at android.support.test.runner.MonitoringInstrumentation.startActivitySync(MonitoringInstrumentation.java:274)
at android.test.InstrumentationTestCase.launchActivityWithIntent(InstrumentationTestCase.java:119)
at android.test.InstrumentationTestCase.launchActivity(InstrumentationTestCase.java:97)
at android.test.ActivityInstrumentationTestCase2.getActivity(ActivityInstrumentationTestCase2.java:104)
at com.cookbrite.step2_functional.ui.homelist.HomeListFragmentLoadingTest.testLoadingSpinner(HomeListFragmentLoadingTest.java:40)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at android.test.InstrumentationTestCase.runMethod(InstrumentationTestCase.java:214)
at android.test.InstrumentationTestCase.runTest(InstrumentationTestCase.java:199)
at android.test.ActivityInstrumentationTestCase2.runTest(ActivityInstrumentationTestCase2.java:192)
at com.cookbrite.util.BaseBlackBoxTest.doRunTest(BaseBlackBoxTest.java:300)
at com.cookbrite.util.BaseBlackBoxTest.access$000(BaseBlackBoxTest.java:44)
at com.cookbrite.util.BaseBlackBoxTest$1.call(BaseBlackBoxTest.java:271)
at java.util.concurrent.FutureTask.run(FutureTask.java:234)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
at java.lang.Thread.run(Thread.java:841)
由上述超时触发的线程转储显示ProgressBar似乎涉及其中：
05-26 15:22:48.135 1003-1018/? E/THREAD_STATE﹕ Thread[main,5,main]
android.graphics.Canvas.native_drawBitmap(Native Method)
android.graphics.Canvas.drawBitmap(Canvas.java:1160)
android.graphics.drawable.BitmapDrawable.draw(BitmapDrawable.java:440)
android.graphics.drawable.RotateDrawable.draw(RotateDrawable.java:88)
android.graphics.drawable.LayerDrawable.draw(LayerDrawable.java:345)
android.widget.ProgressBar.onDraw(ProgressBar.java:1052)
android.view.View.draw(View.java:13944)
android.view.View.draw(View.java:13825)
android.view.ViewGroup.drawChild(ViewGroup.java:3086)
android.view.ViewGroup.dispatchDraw(ViewGroup.java:2923)
android.view.View.draw(View.java:13823)
android.view.ViewGroup.drawChild(ViewGroup.java:3086)
android.view.ViewGroup.dispatchDraw(ViewGroup.java:2923)
android.view.View.draw(View.java:13947)
android.view.View.draw(View.java:13825)
android.view.ViewGroup.drawChild(ViewGroup.java:3086)
android.view.ViewGroup.dispatchDraw(ViewGroup.java:2923)
android.view.View.draw(View.java:13823)
android.view.ViewGroup.drawChild(ViewGroup.java:3086)
android.view.ViewGroup.dispatchDraw(ViewGroup.java:2923)
android.view.View.draw(View.java:13947)
android.widget.FrameLayout.draw(FrameLayout.java:467)
android.view.View.draw(View.java:13825)
android.view.ViewGroup.drawChild(ViewGroup.java:3086)
android.view.ViewGroup.dispatchDraw(ViewGroup.java:2923)
android.view.View.draw(View.java:13823)
android.view.ViewGroup.drawChild(ViewGroup.java:3086)
android.view.ViewGroup.dispatchDraw(ViewGroup.java:2923)
android.view.View.draw(View.java:13947)
android.widget.FrameLayout.draw(FrameLayout.java:467)
com.android.internal.policy.impl.PhoneWindow$DecorView.draw(PhoneWindow.java:2224)
android.view.ViewRootImpl.drawSoftware(ViewRootImpl.java:2482)
android.view.ViewRootImpl.draw(ViewRootImpl.java:2395)
android.view.ViewRootImpl.performDraw(ViewRootImpl.java:2239)
android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1872)
android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1004)
android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5481)
android.view.Choreographer$CallbackRecord.run(Choreographer.java:749)
android.view.Choreographer.doCallbacks(Choreographer.java:562)
android.view.Choreographer.doFrame(Choreographer.java:532)
android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735)
android.os.Handler.handleCallback(Handler.java:730)
android.os.Handler.dispatchMessage(Handler.java:92)
android.os.Looper.loop(Looper.java:137)
android.app.ActivityThread.main(ActivityThread.java:5103)
java.lang.reflect.Method.invokeNative(Native Method)
java.lang.reflect.Method.invoke(Method.java:525)
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
dalvik.system.NativeStart.main(Native Method)
Thread[Binder_2,5,main]
dalvik.system.NativeStart.run(Native Method)
Thread[JDWP,5,system]
dalvik.system.NativeStart.run(Native Method)
Thread[pool-1-thread-1,5,main]
java.lang.Object.wait(Native Method)
java.lang.Object.wait(Object.java:364)
android.app.Instrumentation.startActivitySync(Instrumentation.java:403)
android.support.test.runner.MonitoringInstrumentation.access$101(MonitoringInstrumentation.java:69)
android.support.test.runner.MonitoringInstrumentation$3.call(MonitoringInstrumentation.java:265)
android.support.test.runner.MonitoringInstrumentation$3.call(MonitoringInstrumentation.java:262)
java.util.concurrent.FutureTask.run(FutureTask.java:234)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
java.lang.Thread.run(Thread.java:841)
Thread[pool-5-thread-1,5,main]
dalvik.system.VMStack.getThreadStackTrace(Native Method)
java.lang.Thread.getStackTrace